7 Commits

Author SHA1 Message Date
Wolfgang Hommel
57de5bbe83 Merge pull request #252 from sdettmer/automake_make_check
**FOR REVIEW** Automake make check
2020-04-09 19:29:29 +02:00
Steffen Dettmer
c2b5b71777 First few fixes for make check (#250) 2020-04-09 17:43:51 +02:00
Steffen Dettmer
6c0947c86e Fixed make distcheck (#250) 2020-04-09 17:43:10 +02:00
Steffen Dettmer
b36ad2342c Removed automatically created files (#250) 2020-04-09 16:58:44 +02:00
Wolfgang Hommel
d40d0ebaa7 adapt travis.yml to automake 2020-04-09 06:37:39 +02:00
Wolfgang Hommel
081845440b fix bracket syntax on Linux 2020-04-09 06:34:20 +02:00
Wolfgang Hommel
30207e8fdf merge with @manchicken's automake branch 2020-04-09 06:26:49 +02:00
35 changed files with 716 additions and 814 deletions

View File

@@ -2,22 +2,22 @@ name: Run make test
on:
push:
branches:
branches:
- master
- develop
schedule:
- cron: '30 9 * * *'
jobs:
build:
strategy:
matrix:
os: [ubuntu-latest, macOS-latest]
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v1
- name: make
run: FAKETIME_COMPILE_CFLAGS="-DFORCE_MONOTONIC_FIX" make
run: make
- name: make test
run: make test

22
.gitignore vendored
View File

@@ -1,10 +1,30 @@
*.o
*.so.1
timetest
test/getrandom_test
src/libfaketime.dylib.1
src/libfaketime.1.dylib
src/core
src/faketime
.vscode/
Makefile
Makefile.in
/aclocal.m4
/autom4te.cache/
/config.*
/configure
/depcomp
/install-sh
/libtool
/ltmain.sh
/m4/
/missing
/stamp-h?
.deps/
.dirstamp
.libs/
*.l[ao]
compile
test-driver

View File

@@ -3,19 +3,15 @@ language: c
matrix:
include:
- os: linux
arch: amd64
compiler: gcc
- os: linux
arch: ppc64le
compiler: gcc
- os: osx
osx_image: xcode11
script:
- cd ${TRAVIS_BUILD_DIR}
- if [ "$TRAVIS_ARCH" = ppc64le ]; then
FAKETIME_COMPILE_CFLAGS="-DFORCE_MONOTONIC_FIX -DFORCE_PTHREAD_NONVER" make;
else
FAKETIME_COMPILE_CFLAGS="-DFORCE_MONOTONIC_FIX" make;
fi
- sh ./build.sh init
- ./configure
- FAKETIME_COMPILE_CFLAGS="-DFORCE_MONOTONIC_FIX" make
- cd test
- make test
- make distcheck

2
AUTHORS Normal file
View File

@@ -0,0 +1,2 @@
Wolfgang Hommel <wolfcw>
Balint Reczey <rbalint>

11
ChangeLog Normal file
View File

@@ -0,0 +1,11 @@
# Changelog
All notable changes to this project will be documented in this file.
Additional change history is viewable in the `NEWS` file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
### Changed
- Mike Stemle added GNU autotools

View File

@@ -1,35 +0,0 @@
INSTALL ?= install
UNAME=$(shell uname)
SELECTOR:=$(shell if test "${UNAME}" = "Darwin" ; then echo "-f Makefile.OSX" ; fi)
all:
$(MAKE) $(SELECTOR) -C src all
test:
$(MAKE) $(SELECTOR) -C src all
$(MAKE) $(SELECTOR) -C test all
install:
$(MAKE) $(SELECTOR) -C src install
$(MAKE) $(SELECTOR) -C man install
$(INSTALL) -dm0755 "${DESTDIR}${PREFIX}/share/doc/faketime/"
$(INSTALL) -m0644 README "${DESTDIR}${PREFIX}/share/doc/faketime/README"
$(INSTALL) -m0644 NEWS "${DESTDIR}${PREFIX}/share/doc/faketime/NEWS"
uninstall:
$(MAKE) $(SELECTOR) -C src uninstall
$(MAKE) $(SELECTOR) -C man uninstall
rm -f "${DESTDIR}${PREFIX}/share/doc/faketime/README"
rm -f "${DESTDIR}${PREFIX}/share/doc/faketime/NEWS"
rmdir "${DESTDIR}${PREFIX}/share/doc/faketime"
clean:
$(MAKE) $(SELECTOR) -C src clean
$(MAKE) $(SELECTOR) -C test clean
distclean:
$(MAKE) $(SELECTOR) -C src distclean
$(MAKE) $(SELECTOR) -C test distclean
.PHONY: all test install uninstall clean distclean

4
Makefile.am Normal file
View File

@@ -0,0 +1,4 @@
AUTOMAKE_OPTIONS = foreign
ACLOCAL_AMFLAGS=-I m4
SUBDIRS=src test man
EXTRA_DIST=README.developers README.OSX README.packagers TODO

21
NEWS
View File

@@ -1,23 +1,10 @@
Since 0.9.8:
- When compiled with the CFLAG FAKE_RANDOM set,
libfaketime will intercept calls to getrandom()
and return pseudorandom numbers for determinism.
The mechanism needs to be activated by setting
the environment variable FAKERANDOM_SEED to a
64-bit seed value, e.g., "0x12345678DEADBEEF".
Please note that this completely breaks the
security of random numbers for cryptographic
purposes and should only be used for deterministic
tests. Never use this in production!
- When the environment variable FAKETIME_TIMESTAMP_FILE is
set, points to a writeable (creatable) custom config file
and the environment variable FAKETIME_UPDATE_TIMESTAMP_FILE
is "1", then the file also is updated on each call. By
this, a common "virtual time" can be shared by several
processes, where each can adjust the time for all.
Since 0.9.9:
- Mike Stemle added GNU autotools
- Additional link-time LDFLAGS can be passed via the
environment variable FAKETIME_LINK_FLAGS when
running 'make'.
Since 0.9.8:
- Compile-time CFLAG FAKE_SETTIME can be enabled to
intercept calls to clock_settime(), settimeofday(), and
adjtime(). (suggested and prototyped by @ojura)

144
README
View File

@@ -1,5 +1,5 @@
libfaketime, version 0.9.9 (February 2021)
==========================================
libfaketime, version 0.9.8 (August 2019)
========================================
Content of this file:
@@ -20,7 +20,6 @@ Content of this file:
i) "Limiting" libfaketime per process
j) Spawning an external process
k) Saving timestamps to file, loading them from file
l) Replacing random numbers with deterministic number sequences
5. License
6. Contact
@@ -107,8 +106,16 @@ documentation whether it can be achieved by using libfaketime directly.
3. Installation
---------------
Running "make" compiles both library versions and a test program, which it then
also executes.
This library supports GNU autotools, so you should be able to build it with:
sh ./build.sh init
./configure
make
After you have built the library, you may--optionally--run the tests with:
cd test
make test
If the test works fine, you should copy the libfaketime libraries
(libfaketime.so.1, and libfaketimeMT.so.1) to the place you want them in.
@@ -131,14 +138,16 @@ not need this feature or if it confuses the application you want to use FTPL
with, define the environment variable NO_FAKE_STAT, and the intercepted stat
calls will be passed through unaltered.
On macOS, it is necessary to compile differently, due to the different
behavior dyld has. Use the Makefile.OSX file provided to compile
libfaketime.1.dylib. Additionally, instead of using LD_PRELOAD,
the variable DYLD_INSERT_LIBRARIES should be set to the path to
libfaketime.1.dylib, and the variable DYLD_FORCE_FLAT_NAMESPACE should be
set (to anything). macOS users should read README.OSX for additional
details.
On macOS, instead of using LD_PRELOAD, the variable DYLD_INSERT_LIBRARIES
should be set to the path to libfaketime.0.dylib, and the variable
DYLD_FORCE_FLAT_NAMESPACE should be set (to anything). macOS users should
read README.OSX for additional details.
NOTE: When committing, clean up potentially non-portable files with:
sh build.sh clean
This will clean up the build files which we don't want to version-control.
4. Usage
--------
@@ -188,21 +197,19 @@ linker configuration file, e.g., /etc/ld.so.conf.d/local.conf, and then run
the "ldconfig" command. Afterwards, using LD_PRELOAD=libfaketime.so.1 suffices.
However, also the faked time should be specified; otherwise, libfaketime will
be loaded, but just report the real system time. There are multiple ways to
be loaded, but just report the real system time. There are three ways to
specify the faked time:
a) By setting the environment variable FAKETIME.
b) By using the file given in the environment variable FAKETIME_TIMESTAMP_FILE
c) By using the file .faketimerc in your home directory.
d) By using the file /etc/faketimerc for a system-wide default.
e) By using FAKETIME_UPDATE_TIMESTAMP_FILE and date -s "<time>" or alike.
If you want to use b) c) or d), $HOME/.faketimerc or /etc/faketimerc consist of
only one line of text with exactly the same content as the FAKETIME environment
variable, which is described below. Note that /etc/faketimerc will only be used
if there is no $HOME/.faketimerc and no FAKETIME_TIMESTAMP_FILE file exists.
Also, the FAKETIME environment variable _always_ has priority over the files.
For FAKETIME_UPDATE_TIMESTAMP_FILE please see below.
4b) Using absolute dates
@@ -327,7 +334,7 @@ the same global clock without restarting it at the start of each process.
Please note that using "x" or "i" in FAKETIME still requires giving an offset
(see section 4d). This means that "+1y x2" will work, but "x2" only will not.
If you do not want to fake the time, but just modify clock speed, use something
like "+0 x2", i.e., use an explicit zero offset as a prefix in your FAKETIME.
like "+0 x2", i.e., use an explizit zero offset as a prefix in your FAKETIME.
For testing, your should run a command like
@@ -371,8 +378,7 @@ may take up to 10 seconds before the new fake time is applied. If this is a
problem in your scenario, you can change number of seconds before the file is read
again with environment variable FAKETIME_CACHE_DURATION, or disable caching at all
with FAKETIME_NO_CACHE=1. Remember that disabling the cache may negatively
influence the performance (especially when not using FAKETIME environment
but configuration files, such as FAKETIME_TIMESTAMP_FILE).
influence the performance.
Setting FAKETIME by means of a file timestamp
@@ -438,14 +444,9 @@ Cleaning up shared memory
-------------------------
libfaketime uses semaphores and shared memory on platforms that support it in
order to sync faketime settings across parent-child processes.
Please note that this does not share the time set by settimeofday (for that
see FAKETIME_UPDATE_TIMESTAMP_FILE below).
libfaketime will clean up when it exits properly.
However, when processes are terminated (e.g., by Ctrl-C on command line),
shared memory cannot be cleaned up properly. In such
order to sync faketime settings across parent-child processes. It will clean
up when it exits properly. However, when processes are terminated (e.g., by
Ctrl-C on command line), shared memory cannot be cleaned up properly. In such
cases, you should occasionally delete
/dev/shm/faketime_shm_* and
@@ -470,54 +471,9 @@ Intercepting time-setting calls
libfaketime can be compiled with the CFLAG "-DFAKE_SETTIME" in order
to also intercept time-setting functions, i.e., clock_settime(),
settimeofday(), and adjtime(). The FAKETIME environment
variable will be adjusted on each call.
When the environment variable FAKETIME_TIMESTAMP_FILE is set, points to a
writeable (creatable) custom config file and the environment variable
FAKETIME_UPDATE_TIMESTAMP_FILE is "1", then the file also is updated on each
call. By this, a common "virtual time" can be shared by several
processes, where each can adjust the time for all.
Sharing "virtual settable time" between independent processes
-------------------------------------------------------------
When libfaketime was compiled with FAKETIME_COMPILE_CFLAGS="-DFAKE_SETTIME",
it can be configured to support a common time offset for multiple processes.
This for example allows to use "ntpdate" as normal user without affecting
system clock, interactively testing software with different dates or testing
complex software with multiple independent processes that themself use
settime internally.
Examples:
$ export LD_PRELOAD=libfaketime.so.1
$ export FAKETIME_TIMESTAMP_FILE="/tmp/my-faketime.rc"
$ export FAKETIME_UPDATE_TIMESTAMP_FILE=1
$ export FAKETIME_CACHE_DURATION=1 # in seconds
# or: export FAKETIME_NO_CACHE=1
$ date -s "1999-12-24 16:00:00"
Fri Dec 24 16:00:00 CET 1999
$ LD_PRELOAD="" date
Thu Apr 9 15:19:38 CEST 2020
$ date
Fri Dec 24 16:00:02 CET 1999
$ /usr/sbin/ntpdate -u clock.isc.org
9 Apr 15:18:37 ntpdate[718]: step time server xx offset 640390517.057257 sec
$ date
Thu Apr 9 15:18:40 CEST 2020
In another terminal, script or environmment the same variables could be set
and the same time would be printed.
This also avoid the need to directly update the rc config file to use
different times, but of course only supports time offsets.
Please note that this feature is not compatible with several other features,
such as FAKETIME_FOLLOW_FILE, FAKETIME_XRESET and maybe others. After first
settime, offsets will be used in FAKETIME_TIMESTAMP_FILE, even if it
initially used advanced time specification options.
settimeofday(), and adjtime(). Instead of passing the timestamp a
program sets through to the system, only the FAKETIME environment
variable will be adjusted accordingly.
4f) Faking the date and time system-wide
@@ -693,11 +649,6 @@ seconds.
4k) Saving timestamps to file, loading them from file
-----------------------------------------------------
To store and load timestamp _offsets_ using _one and the same_ file allowing
to share a common "virtual time" between independent processes, please see
FAKETIME_UPDATE_TIMESTAMP_FILE above. The FAKETIME_SAVE_FILE feature is
different.
faketime can save faked timestamps to a file specified by FAKETIME_SAVE_FILE
environment variable. It can also use the file specified by FAKETIME_LOAD_FILE
to replay timestamps from it. After consuming the whole file, libfaketime
@@ -717,41 +668,6 @@ faketime needs to be run using the faketime wrapper to use these files. This
functionality has been added by Balint Reczey in v0.9.5.
4l) Replacing random numbers with deterministic number sequences
----------------------------------------------------------------
libfaketime can be compiled with the CFLAG FAKE_RANDOM set (see src/Makefile).
When compiled this way, libfaketime additionally intercepts calls to the
function getrandom(), which currently is Linux-specific.
This functionality is intended to feed a sequence of deterministic, repeatable
numbers to applications, which use getrandom(), instead of the random numbers
provided by /dev/[u]random.
For creating the deterministic number sequence, libfaketime internally
uses Bernard Widynski's Middle Square Weyl Sequence Random Number Generator,
see https://mswsrng.wixsite.com/rand.
It requires a 64-bit seed value, which has to be passed via the environment
variable FAKERANDOM_SEED, as in, for example
LD_PRELOAD=src/libfaketime.so.1 \
FAKERANDOM_SEED="0x12345678DEADBEEF" \
test/getrandom_test
Whenever the same seed value is used, the same sequence of "random-looking"
numbers is generated.
Please be aware that this definitely breaks any security properties that
may be attributed to random numbers delivered by getrandom(), e.g., in the
context of cryptographic operations. Use it for deterministic testing
purposes only. Never use it in production.
For a discussion on why this apparently not date-/time-related function
has been added to libfaketime and how it may evolve, see Github issue #275.
5. License
----------

View File

@@ -1,17 +1,10 @@
README file for libfaketime on macOS
====================================
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! If you compiled libfaketime successfully but even the simple examples !
! with the "date" command do not seem to work, please see the notes about !
! SIP (system integrity protection) in this document! !
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Support for macOS has meanwhile matured and many command line and
GUI applications will run stable.
Developments and tests are done on Catalina currently.
Developments and tests are done on Mojave currently.
Version 0.9.5 and higher no longer work with OSX <= 10.6 due to
changes in the underlying system libraries. If you need libfaketime
@@ -46,18 +39,23 @@ Otherwise, you have to compile and install libfaketime manually; this
will require a working installation of Xcode and its command line tools
on your machine.
You can compile libfaketime by running the command
This library now supports GNU autotools, so you can build it using:
sh build.sh init
./configure
make
in libfaketime's top-level directory.
The resulting library will be named libfaketime.1.dylib ; to check
whether it works properly, run the test suite and verify whether its
output is correct:
cd test
make -f Makefile.OSX
make test
NOTE: When committing, be sure to clean up potentially
system-dependent files by running:
sh build.sh clean
2) Using libfaketime from the command line on macOS
@@ -145,13 +143,6 @@ However, there are two important aspects:
application to a non-SIP-protected path, and if libfaketime still does not
work, feel free to report it.
Please note that this also applies to simple programs such as /bin/date,
which is used as an example in the libfaketime documentation and help texts.
Again, either disable SIP on your system (which might not be the best idea),
or copy the applications / programs you want to use with libfaketime to
a different path, which is not SIP-protected, e.g., within your home directory.
- We cannot and will not help with using libfaketime for proprietary or
commercial software unless you are its developer trying to integrate
libfaketime. Please contact the developers or the vendor directly if

View File

@@ -14,10 +14,6 @@ src/Makefile, but sane defaults for stable operations have been chosen.
Currently, libfaketime does not use autotools yet, so there is
_no_ ./configure step, but "make" and "make test" will work as expected.
For "make test", an optional environment variable FAKETIME_TESTLIB can
be set, pointing to the path and filename of the libfaketime library
to be used for tests; the default is "../src/libfaketime.so.1".
However, one problem makes it somewhat difficult to get libfaketime
working on different platforms:

270
ar-lib Executable file
View File

@@ -0,0 +1,270 @@
#! /bin/sh
# Wrapper for Microsoft lib.exe
me=ar-lib
scriptversion=2012-03-01.08; # UTC
# Copyright (C) 2010-2018 Free Software Foundation, Inc.
# Written by Peter Rosin <peda@lysator.liu.se>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
# func_error message
func_error ()
{
echo "$me: $1" 1>&2
exit 1
}
file_conv=
# func_file_conv build_file
# Convert a $build file to $host form and store it in $file
# Currently only supports Windows hosts.
func_file_conv ()
{
file=$1
case $file in
/ | /[!/]*) # absolute file, and not a UNC file
if test -z "$file_conv"; then
# lazily determine how to convert abs files
case `uname -s` in
MINGW*)
file_conv=mingw
;;
CYGWIN*)
file_conv=cygwin
;;
*)
file_conv=wine
;;
esac
fi
case $file_conv in
mingw)
file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
;;
cygwin)
file=`cygpath -m "$file" || echo "$file"`
;;
wine)
file=`winepath -w "$file" || echo "$file"`
;;
esac
;;
esac
}
# func_at_file at_file operation archive
# Iterate over all members in AT_FILE performing OPERATION on ARCHIVE
# for each of them.
# When interpreting the content of the @FILE, do NOT use func_file_conv,
# since the user would need to supply preconverted file names to
# binutils ar, at least for MinGW.
func_at_file ()
{
operation=$2
archive=$3
at_file_contents=`cat "$1"`
eval set x "$at_file_contents"
shift
for member
do
$AR -NOLOGO $operation:"$member" "$archive" || exit $?
done
}
case $1 in
'')
func_error "no command. Try '$0 --help' for more information."
;;
-h | --h*)
cat <<EOF
Usage: $me [--help] [--version] PROGRAM ACTION ARCHIVE [MEMBER...]
Members may be specified in a file named with @FILE.
EOF
exit $?
;;
-v | --v*)
echo "$me, version $scriptversion"
exit $?
;;
esac
if test $# -lt 3; then
func_error "you must specify a program, an action and an archive"
fi
AR=$1
shift
while :
do
if test $# -lt 2; then
func_error "you must specify a program, an action and an archive"
fi
case $1 in
-lib | -LIB \
| -ltcg | -LTCG \
| -machine* | -MACHINE* \
| -subsystem* | -SUBSYSTEM* \
| -verbose | -VERBOSE \
| -wx* | -WX* )
AR="$AR $1"
shift
;;
*)
action=$1
shift
break
;;
esac
done
orig_archive=$1
shift
func_file_conv "$orig_archive"
archive=$file
# strip leading dash in $action
action=${action#-}
delete=
extract=
list=
quick=
replace=
index=
create=
while test -n "$action"
do
case $action in
d*) delete=yes ;;
x*) extract=yes ;;
t*) list=yes ;;
q*) quick=yes ;;
r*) replace=yes ;;
s*) index=yes ;;
S*) ;; # the index is always updated implicitly
c*) create=yes ;;
u*) ;; # TODO: don't ignore the update modifier
v*) ;; # TODO: don't ignore the verbose modifier
*)
func_error "unknown action specified"
;;
esac
action=${action#?}
done
case $delete$extract$list$quick$replace,$index in
yes,* | ,yes)
;;
yesyes*)
func_error "more than one action specified"
;;
*)
func_error "no action specified"
;;
esac
if test -n "$delete"; then
if test ! -f "$orig_archive"; then
func_error "archive not found"
fi
for member
do
case $1 in
@*)
func_at_file "${1#@}" -REMOVE "$archive"
;;
*)
func_file_conv "$1"
$AR -NOLOGO -REMOVE:"$file" "$archive" || exit $?
;;
esac
done
elif test -n "$extract"; then
if test ! -f "$orig_archive"; then
func_error "archive not found"
fi
if test $# -gt 0; then
for member
do
case $1 in
@*)
func_at_file "${1#@}" -EXTRACT "$archive"
;;
*)
func_file_conv "$1"
$AR -NOLOGO -EXTRACT:"$file" "$archive" || exit $?
;;
esac
done
else
$AR -NOLOGO -LIST "$archive" | sed -e 's/\\/\\\\/g' | while read member
do
$AR -NOLOGO -EXTRACT:"$member" "$archive" || exit $?
done
fi
elif test -n "$quick$replace"; then
if test ! -f "$orig_archive"; then
if test -z "$create"; then
echo "$me: creating $orig_archive"
fi
orig_archive=
else
orig_archive=$archive
fi
for member
do
case $1 in
@*)
func_file_conv "${1#@}"
set x "$@" "@$file"
;;
*)
func_file_conv "$1"
set x "$@" "$file"
;;
esac
shift
shift
done
if test -n "$orig_archive"; then
$AR -NOLOGO -OUT:"$archive" "$orig_archive" "$@" || exit $?
else
$AR -NOLOGO -OUT:"$archive" "$@" || exit $?
fi
elif test -n "$list"; then
if test ! -f "$orig_archive"; then
func_error "archive not found"
fi
$AR -NOLOGO -LIST "$archive" || exit $?
fi

46
build.sh Normal file
View File

@@ -0,0 +1,46 @@
#!/bin/sh
#autoreconf --install
# Thanks, https://github.com/raywill/automake
export AUTOM4TE="autom4te"
export AUTOCONF="autoconf"
# On OSX, it's glibtoolize
LIBTOOLIZE=$(which libtoolize)
if [ "$LIBTOOLIZE" = "" ]; then
LIBTOOLIZE=$(which glibtoolize)
fi
if [ "$LIBTOOLIZE" = "" ]; then
echo "CANNOT CONTINUE! MISSING (G)LIBTOOLIZE! Install libtool!" >&2
exit 2
fi
case "x$1" in
xinit)
[ -d m4 ] || mkdir m4
set -x
autoheader
aclocal
$LIBTOOLIZE --force --copy --automake
autoconf --force
automake --foreign --copy --add-missing -Woverride
;;
xclean)
echo 'cleaning...'
make distclean >/dev/null 2>&1
rm -rf autom4te.cache
for fn in aclocal.m4 configure config.guess config.sub depcomp install-sh \
ltmain.sh libtool missing mkinstalldirs config.log config.status Makefile; do
rm -f $fn
done
find . -name Makefile.in -exec rm -f {} \;
find . -name Makefile -exec rm -f {} \;
find . -name .deps -prune -exec rm -rf {} \;
echo 'done'
;;
*)
./configure
;;
esac

62
configure.ac Normal file
View File

@@ -0,0 +1,62 @@
# https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html#Updating-version-info
m4_define([lft_major_version], [0])
m4_define([lft_minor_version], [9])
m4_define([lft_micro_version], [8])
m4_define([libfaketime_version],
[lft_major_version.lft_minor_version.lft_micro_version])
AC_PREREQ([2.68])
AC_INIT([libfaketime], [libfaketime_version])
AC_SUBST([LIBTOOL_DEPS])
#AC_CONFIG_MACRO_DIRS([m4])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([-Wall -Werror foreign])
AM_CONDITIONAL(MACOS, test `uname` = "Darwin")
AM_CONDITIONAL(SOLARIS, test `uname` = "SunOS")
eval PREFIX=`test "$prefix" = NONE && prefix=$ac_default_prefix; eval echo "${prefix}"`
eval LIBPREFIX="$PREFIX/lib"
LIBFAKETIME_MAJOR_VERSION=lft_major_version
AC_SUBST(PREFIX)
AC_SUBST(LIBPREFIX)
AC_SUBST(LIBVERSION)
AC_DEFINE_UNQUOTED(PREFIX, "$PREFIX", [The install prefix for the package])
AC_DEFINE_UNQUOTED(LIBPREFIX, "$LIBPREFIX", [The install prefix for libraries])
AC_DEFINE(LIBVERSION, ["lft_major_version"], [The library version number])
AC_CONFIG_SRCDIR([src])
AC_CONFIG_HEADERS([config.h])
# libtool versioning
LIBFAKETIME_VERSION=libfaketime_version
AC_SUBST(LIBFAKETIME_VERSION)
# Checks for programs.
AC_PROG_CC
AM_PROG_AR
# Checks for libraries.
AC_CHECK_LIB([c], [timespecadd], [timespecmul])
## FORESHADOWING...
## AC_CHECK_LIB([cunit], [CU_assertImplementation])
# Checks for header files.
AC_CHECK_HEADERS([stdlib.h sys/param.h unistd.h stdbool.h time.h netinet/in.h math.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT32_T
# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_CHECK_FUNCS([memset])
LT_INIT
AC_CONFIG_FILES([Makefile src/Makefile test/Makefile man/Makefile])
AC_OUTPUT

View File

@@ -1,14 +0,0 @@
INSTALL ?= install
PREFIX ?= /usr/local
all:
install:
$(INSTALL) -Dm0644 faketime.1 "${DESTDIR}${PREFIX}/share/man/man1/faketime.1"
gzip -f "${DESTDIR}${PREFIX}/share/man/man1/faketime.1"
uninstall:
rm -f "${DESTDIR}${PREFIX}/share/man/man1/faketime.1.gz"
.PHONY: all install uninstall

View File

@@ -1,15 +0,0 @@
INSTALL ?= install
PREFIX ?= /usr/local
all:
install:
$(INSTALL) -dm0755 "${DESTDIR}${PREFIX}/share/man/man1"
$(INSTALL) -m0644 faketime.1 "${DESTDIR}${PREFIX}/share/man/man1/faketime.1"
gzip -f "${DESTDIR}${PREFIX}/share/man/man1/faketime.1"
uninstall:
rm -f "${DESTDIR}${PREFIX}/share/man/man1/faketime.1.gz"
.PHONY: all install uninstall

18
man/Makefile.am Normal file
View File

@@ -0,0 +1,18 @@
ACLOCAL_AMFLAGS=-I m4
dist_man_MANS = faketime.1
# INSTALL ?= install
#
# PREFIX ?= /usr/local
#
# all:
#
# install:
# $(INSTALL) -Dm0644 faketime.1 "${DESTDIR}${PREFIX}/share/man/man1/faketime.1"
# gzip -f "${DESTDIR}${PREFIX}/share/man/man1/faketime.1"
#
# uninstall:
# rm -f "${DESTDIR}${PREFIX}/share/man/man1/faketime.1.gz"
#
# .PHONY: all install uninstall

View File

@@ -1,4 +1,4 @@
.TH FAKETIME "1" "February 2021" "faketime 0.9.9" wolfcw
.TH FAKETIME "1" "August 2019" "faketime 0.9.8" wolfcw
.SH NAME
faketime \- manipulate the system time for a given command
.SH SYNOPSIS
@@ -71,7 +71,7 @@ re-initialized. Some programs may dynamically load system libraries, such as lib
.SH "REPORTING BUGS"
Please use https://github.com/wolfcw/libfaketime/issues
.SH COPYRIGHT
Copyright \(co 2003-2021 by the libfaketime authors.
Copyright \(co 2003-2013 by the libfaketime authors.
.PP
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. You may redistribute copies of faketime under the

View File

@@ -1,75 +0,0 @@
#
# Notes:
#
# * Compilation Defines:
#
# FAKE_STAT
# - Enables time faking also for files' timestamps.
#
# NO_ATFILE
# - Disables support for the fstatat() group of functions
#
# PTHREAD
# - Define this to enable multithreading support.
#
# PTHREAD_SINGLETHREADED_TIME
# - Define this if you want to single-thread time() ... there ARE
# possible caching side-effects in a multithreaded environment
# without this, but the performance impact may require you to
# try it unsynchronized.
#
# FAKE_SLEEP
# - Also intercept sleep(), nanosleep(), usleep(), alarm(), [p]poll()
#
# * Compilation addition: second libMT target added for building the pthread-
# enabled library as a separate library
#
# * Compilation switch change: previous versions compiled using '-nostartfiles'
# This is no longer the case since there is a 'startup' constructor for the library
# which is used to activate the start-at times when specified. This also initializes
# the dynamic disabling of the FAKE_STAT calls.
#
# By default, libfaketime will be compiled for your system's default architecture.
# To build for a different architecture, add -arch flags to CFLAGS and LDFLAGS.
#
# default to clang to support thread local variables
CC ?= clang
INSTALL ?= install
PREFIX ?= /usr/local
CFLAGS += -DFAKE_SLEEP -DFAKE_INTERNAL_CALLS -DPREFIX='"'${PREFIX}'"' $(FAKETIME_COMPILE_CFLAGS)
LIB_LDFLAGS += -dynamiclib -current_version 0.9.9 -compatibility_version 0.7
SONAME = 1
LIBS = libfaketime.${SONAME}.dylib
BINS = faketime
all: ${LIBS} ${BINS}
libfaketime.${SONAME}.dylib: libfaketime.c
${CC} -o $@ ${CFLAGS} ${LDFLAGS} ${LIB_LDFLAGS} -install_name ${PREFIX}/lib/faketime/$@ $<
faketime: faketime.c
${CC} -o $@ ${CFLAGS} ${LDFLAGS} $<
clean:
@rm -f ${OBJ} ${LIBS} ${BINS}
distclean: clean
@echo
install: ${LIBS} ${BINS}
@echo
@echo "Copying the faketime libraries to ${DESTDIR}${PREFIX}/lib/faketime and the faketime wrapper script to ${DESTDIR}${PREFIX}/bin ..."
$(INSTALL) -dm0755 "${DESTDIR}${PREFIX}/lib/faketime/"
$(INSTALL) -m0644 ${LIBS} "${DESTDIR}${PREFIX}/lib/faketime/"
$(INSTALL) -dm0755 "${DESTDIR}${PREFIX}/bin"
$(INSTALL) -m0755 faketime "${DESTDIR}${PREFIX}/bin/faketime"
uninstall:
for f in ${LIBS}; do rm -f "${DESTDIR}${PREFIX}/lib/faketime/$$f"; done
rmdir "${DESTDIR}${PREFIX}/lib/faketime"
rm -f "${DESTDIR}${PREFIX}/bin/faketime"
.PHONY: all clean distclean install uninstall

39
src/Makefile.am Normal file
View File

@@ -0,0 +1,39 @@
ACLOCAL_AMFLAGS=-I m4
LIBTOOL_DEPS = @LIBTOOL_DEPS@
LIBOBJDIR = "."
libtool: $(LIBTOOL_DEPS)
$(SHELL) ./config.status libtool
AM_CFLAGS =-DFAKE_SLEEP -DFAKE_INTERNAL_CALLS
AM_LDFLAGS =
if SOLARIS
AM_CFLAGS += -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
AM_LDFLAGS += -Wl,--version-script=@srcdir@/libfaketime.map
endif
if !MACOS
AM_CFLAGS += -std=gnu99 -Wall -Wextra -Werror -DFAKE_STAT -DFAKE_PTHREAD -DFAKE_TIMERS -DFAKE_INTERNAL_CALLS -fPIC -Wno-nonnull-compare
endif
LTCFLAGS=""
EXTRA_DIST=libfaketime.map
lib_LTLIBRARIES = libfaketime.la libfaketimeMT.la
libfaketime_la_SOURCES = libfaketime.c
libfaketimeMT_la_SOURCES = libfaketime.c
noinst_HEADERS = faketime_common.h sunos_endian.h time_ops.h uthash.h
bin_PROGRAMS = faketime
faketime_SOURCES = faketime.c
if MACOS
libfaketime_la_LDFLAGS = -dynamiclib -current_version 0.9.8 -compatibility_version 0.7
else
libfaketime_la_LIBADD = -ldl -lm -lrt -lpthread
libfaketime_la_LDFLAGS = -shared -Wl,--version-script=@srcdir@/libfaketime.map
libfaketimeMT_la_LIBADD = -ldl -lm -lrt -lpthread
libfaketimeMT_la_CFLAGS = -DPTHREAD_SINGLETHREADED_TIME
libfaketimeMT_la_LDFLAGS = -shared -Wl,--version-script=@srcdir@/libfaketime.map -DPTHREAD_SINGLETHREADED_TIME
faketime_LDADD = -ldl -lm -lrt -lpthread
endif

View File

@@ -6,11 +6,6 @@
# FAKE_STAT
# - Enables time faking also for files' timestamps.
#
# FAKE_FILE_TIMESTAMPS, FAKE_UTIME
# - Enables time faking for the utime* functions. If enabled via
# FAKE_UTIME define instead of FAKE_FILE_TIMESTAMPS, the faking
# defaults to off without FAKE_UTIME in the environment.
#
# NO_ATFILE
# - Disables support for the fstatat() group of functions
#
@@ -38,9 +33,6 @@
# FAKE_SETTIME
# - Intercept clock_settime(), settimeofday(), and adjtime()
#
# FAKE_RANDOM
# - Intercept getrandom()
#
# FORCE_MONOTONIC_FIX
# - If the test program hangs forever on
# " pthread_cond_timedwait: CLOCK_MONOTONIC test
@@ -49,7 +41,7 @@
# (This is a platform-specific issue we cannot handle at run-time.)
#
# MULTI_ARCH
# - If MULTI_ARCH is set, the faketime wrapper program will put a literal
# - If MULTI_ARCH is set, the faketime wrapper program will put a literal
# $LIB into the LD_PRELOAD environment variable it creates, which makes
# ld automatically choose the correct library version to use for the
# target binary. Use for Linux platforms with Multi-Arch support only!
@@ -80,7 +72,7 @@ PREFIX ?= /usr/local
LIBDIRNAME ?= /lib/faketime
PLATFORM ?=$(shell uname)
CFLAGS += -std=gnu99 -Wall -Wextra -Werror -Wno-nonnull-compare -DFAKE_PTHREAD -DFAKE_STAT -DFAKE_UTIME -DFAKE_SLEEP -DFAKE_TIMERS -DFAKE_INTERNAL_CALLS -fPIC -DPREFIX='"'$(PREFIX)'"' -DLIBDIRNAME='"'$(LIBDIRNAME)'"' $(FAKETIME_COMPILE_CFLAGS)
CFLAGS += -std=gnu99 -Wall -Wextra -Werror -Wno-nonnull-compare -DFAKE_PTHREAD -DFAKE_STAT -DFAKE_SLEEP -DFAKE_TIMERS -DFAKE_INTERNAL_CALLS -fPIC -DPREFIX='"'$(PREFIX)'"' -DLIBDIRNAME='"'$(LIBDIRNAME)'"' $(FAKETIME_COMPILE_CFLAGS)
ifeq ($(PLATFORM),SunOS)
CFLAGS += -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
endif

View File

@@ -1,7 +1,7 @@
/*
* libfaketime wrapper command
*
* This file is part of libfaketime, version 0.9.9
* This file is part of libfaketime, version 0.9.8
*
* libfaketime is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License v2 as published by the
@@ -47,8 +47,9 @@
#include <semaphore.h>
#include "faketime_common.h"
#include "config.h"
const char version[] = "0.9.9";
const char version[] = VERSION;
#ifdef __APPLE__
static const char *date_cmd = "gdate";
@@ -93,11 +94,11 @@ static void cleanup_shobjs()
{
if (-1 == sem_unlink(sem_name))
{
perror("faketime: sem_unlink");
perror("sem_unlink");
}
if (-1 == shm_unlink(shm_name))
{
perror("faketime: shm_unlink");
perror("shm_unlink");
}
}
@@ -171,7 +172,7 @@ int main (int argc, char **argv)
close(pfds[0]); /* we don't need this */
if (EXIT_SUCCESS != execlp(date_cmd, date_cmd, "-d", argv[curr_opt], "+%s",(char *) NULL))
{
perror("faketime: Running (g)date failed");
perror("Running (g)date failed");
exit(EXIT_FAILURE);
}
}
@@ -223,7 +224,7 @@ int main (int argc, char **argv)
if (SEM_FAILED == (sem = sem_open(sem_name, O_CREAT|O_EXCL, S_IWUSR|S_IRUSR, 1)))
{
perror("faketime: sem_open");
perror("sem_open");
fprintf(stderr, "The faketime wrapper only works on platforms that support the sem_open()\nsystem call. However, you may LD_PRELOAD libfaketime without using this wrapper.\n");
exit(EXIT_FAILURE);
}
@@ -231,10 +232,10 @@ int main (int argc, char **argv)
/* create shm */
if (-1 == (shm_fd = shm_open(shm_name, O_CREAT|O_EXCL|O_RDWR, S_IWUSR|S_IRUSR)))
{
perror("faketime: shm_open");
perror("shm_open");
if (-1 == sem_unlink(argv[2]))
{
perror("faketime: sem_unlink");
perror("sem_unlink");
}
exit(EXIT_FAILURE);
}
@@ -242,7 +243,7 @@ int main (int argc, char **argv)
/* set shm size */
if (-1 == ftruncate(shm_fd, sizeof(uint64_t)))
{
perror("faketime: ftruncate");
perror("ftruncate");
cleanup_shobjs();
exit(EXIT_FAILURE);
}
@@ -251,14 +252,14 @@ int main (int argc, char **argv)
if (MAP_FAILED == (ft_shared = mmap(NULL, sizeof(struct ft_shared_s), PROT_READ|PROT_WRITE,
MAP_SHARED, shm_fd, 0)))
{
perror("faketime: mmap");
perror("mmap");
cleanup_shobjs();
exit(EXIT_FAILURE);
}
if (sem_wait(sem) == -1)
{
perror("faketime: sem_wait");
perror("sem_wait");
cleanup_shobjs();
exit(EXIT_FAILURE);
}
@@ -275,14 +276,14 @@ int main (int argc, char **argv)
if (-1 == munmap(ft_shared, (sizeof(struct ft_shared_s))))
{
perror("faketime: munmap");
perror("munmap");
cleanup_shobjs();
exit(EXIT_FAILURE);
}
if (sem_post(sem) == -1)
{
perror("faketime: semop");
perror("semop");
cleanup_shobjs();
exit(EXIT_FAILURE);
}
@@ -295,19 +296,21 @@ int main (int argc, char **argv)
{
char *ftpl_path;
#ifdef __APPLE__
ftpl_path = PREFIX "/libfaketime.1.dylib";
FILE *check;
check = fopen(ftpl_path, "ro");
if (check == NULL)
{
ftpl_path = PREFIX "/lib/faketime/libfaketime.1.dylib";
if (!getenv("DYLD_INSERT_LIBRARIES") && !getenv("DYLD_FORCE_FLAT_NAMESPACE")) {
ftpl_path = LIBPREFIX "/libfaketime." LIBVERSION ".dylib";
FILE *check;
check = fopen(ftpl_path, "ro");
if (check == NULL)
{
ftpl_path = PREFIX "/lib/faketime/libfaketime." LIBVERSION ".dylib";
}
else
{
fclose(check);
}
setenv("DYLD_INSERT_LIBRARIES", ftpl_path, true);
setenv("DYLD_FORCE_FLAT_NAMESPACE", "1", true);
}
else
{
fclose(check);
}
setenv("DYLD_INSERT_LIBRARIES", ftpl_path, true);
setenv("DYLD_FORCE_FLAT_NAMESPACE", "1", true);
#else
{
char *ld_preload_new, *ld_preload = getenv("LD_PRELOAD");
@@ -318,17 +321,17 @@ int main (int argc, char **argv)
* on MultiArch platforms, such as Debian, we put a literal $LIB into LD_PRELOAD.
*/
#ifndef MULTI_ARCH
ftpl_path = PREFIX LIBDIRNAME "/libfaketimeMT.so.1";
ftpl_path = LIBPREFIX "/libfaketimeMT.so." LIBVERSION;
#else
ftpl_path = PREFIX "/$LIB/faketime/libfaketimeMT.so.1";
ftpl_path = PREFIX "/$LIB/faketime/libfaketimeMT.so." LIBVERSION;
#endif
}
else
{
#ifndef MULTI_ARCH
ftpl_path = PREFIX LIBDIRNAME "/libfaketime.so.1";
ftpl_path = LIBPREFIX "/libfaketime.so." LIBVERSION;
#else
ftpl_path = PREFIX "/$LIB/faketime/libfaketime.so.1";
ftpl_path = PREFIX "/$LIB/faketime/libfaketime.so." LIBVERSION;
#endif
}
len = ((ld_preload)?strlen(ld_preload) + 1: 0) + 1 + strlen(ftpl_path);
@@ -347,7 +350,7 @@ int main (int argc, char **argv)
close(keepalive_fds[0]); /* only parent needs to read this */
if (EXIT_SUCCESS != execvp(argv[curr_opt], &argv[curr_opt]))
{
perror("faketime: Running specified command failed");
perror("Running specified command failed");
exit(EXIT_FAILURE);
}
}

View File

@@ -58,4 +58,28 @@ struct ft_shared_s
#include <mach/mach_port.h>
#endif
#ifdef FAKE_SLEEP
#include <time.h>
#include <poll.h>
#include <sys/types.h>
#include <semaphore.h>
/*
* Fake sleep prototypes!
*/
struct pollfd;
int nanosleep(const struct timespec *req, struct timespec *rem);
int usleep(useconds_t usec);
unsigned int sleep(unsigned int seconds);
unsigned int alarm(unsigned int seconds);
int ppoll(struct pollfd *fds, nfds_t nfds,
const struct timespec *timeout_ts, const sigset_t *sigmask);
int poll(struct pollfd *fds, nfds_t nfds, int timeout);
int select(int nfds, fd_set *readfds,
fd_set *writefds,
fd_set *errorfds,
struct timeval *timeout);
int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout);
#endif /* FAKE_SLEEP */
#endif

View File

@@ -1,5 +1,5 @@
/*
* This file is part of libfaketime, version 0.9.9
* This file is part of libfaketime, version 0.9.8
*
* libfaketime is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License v2 as published by the
@@ -44,6 +44,7 @@
#include <netinet/in.h>
#include <limits.h>
#include "config.h"
#include "uthash.h"
#include "time_ops.h"
@@ -111,10 +112,6 @@ typedef int clockid_t;
#define CLOCK_MONOTONIC_RAW (CLOCK_MONOTONIC + 1)
#endif
#if defined FAKE_UTIME && !defined FAKE_FILE_TIMESTAMPS
#define FAKE_FILE_TIMESTAMPS
#endif
#ifdef FAKE_FILE_TIMESTAMPS
struct utimbuf {
time_t actime; /* access time */
@@ -122,10 +119,6 @@ struct utimbuf {
};
#endif
#ifdef FAKE_RANDOM
#include <sys/random.h>
#endif
/*
* Per thread variable, which we turn on inside real_* calls to avoid modifying
* time multiple times of for the whole process to prevent faking time
@@ -219,12 +212,6 @@ static clock_serv_t clock_serv_real;
#ifdef FAKE_FILE_TIMESTAMPS
static int (*real_utimes) (const char *filename, const struct timeval times[2]);
static int (*real_utime) (const char *filename, const struct utimbuf *times);
static int (*real_utimensat) (int dirfd, const char *filename, const struct timespec times[2], int flags);
static int (*real_futimens) (int fd, const struct timespec times[2]);
#endif
#ifdef FAKE_RANDOM
static ssize_t (*real_getrandom) (void *buf, size_t buflen, unsigned int flags);
#endif
static int initialized = 0;
@@ -614,15 +601,8 @@ static void next_time(struct timespec *tp, struct timespec *ticklen)
/* lock */
if (sem_wait(shared_sem) == -1)
{
if (errno == EINTR)
{
return next_time(tp, ticklen);
}
else
{
perror("libfaketime: In next_time(), sem_wait failed");
exit(1);
}
perror("libfaketime: In next_time(), sem_wait failed");
exit(1);
}
/* calculate and update elapsed time */
timespecmul(ticklen, ft_shared->ticks, &inc);
@@ -658,15 +638,8 @@ static void save_time(struct timespec *tp)
/* lock */
if (sem_wait(shared_sem) == -1)
{
if (errno == EINTR)
{
return save_time(tp);
}
else
{
perror("libfaketime: In save_time(), sem_wait failed");
exit(1);
}
perror("libfaketime: In save_time(), sem_wait failed");
exit(1);
}
lseek(outfile, 0, SEEK_END);
@@ -703,15 +676,8 @@ static bool load_time(struct timespec *tp)
/* lock */
if (sem_wait(shared_sem) == -1)
{
if (errno == EINTR)
{
return load_time(tp);
}
else
{
perror("libfaketime: In load_time(), sem_wait failed");
exit(1);
}
perror("libfaketime: In load_time(), sem_wait failed");
exit(1);
}
if ((sizeof(stss[0]) * (ft_shared->file_idx + 1)) > infile_size)
@@ -771,7 +737,6 @@ static bool load_time(struct timespec *tp)
#include <sys/stat.h>
static int fake_stat_disabled = 0;
static int fake_utime_disabled = 1;
static bool user_per_tick_inc_set_backup = false;
void lock_for_stat()
@@ -780,15 +745,8 @@ void lock_for_stat()
{
if (sem_wait(shared_sem) == -1)
{
if (errno == EINTR)
{
return lock_for_stat();
}
else
{
perror("libfaketime: In lock_for_stat(), sem_wait failed");
exit(1);
}
perror("libfaketime: In lock_for_stat(), sem_wait failed");
exit(1);
}
}
user_per_tick_inc_set_backup = user_per_tick_inc_set;
@@ -1130,21 +1088,14 @@ int utime(const char *filename, const struct utimbuf *times)
int result;
struct utimbuf ntbuf;
if (fake_utime_disabled)
ntbuf.actime = times->actime - user_offset.tv_sec;
ntbuf.modtime = times->modtime - user_offset.tv_sec;
DONT_FAKE_TIME(result = real_utime(filename, &ntbuf));
if (result == -1)
{
if (times == NULL)
{ /* The user wants their given fake times left alone but they requested NOW, so turn it into fake NOW */
ntbuf.actime = ntbuf.modtime = time(NULL);
times = &ntbuf;
}
return -1;
}
else if (times != NULL)
{
ntbuf.actime = times->actime - user_offset.tv_sec;
ntbuf.modtime = times->modtime - user_offset.tv_sec;
times = &ntbuf;
}
DONT_FAKE_TIME(result = real_utime(filename, times));
return result;
}
@@ -1164,105 +1115,17 @@ int utimes(const char *filename, const struct timeval times[2])
int result;
struct timeval tn[2];
if (fake_utime_disabled)
struct timeval user_offset2;
user_offset2.tv_sec = user_offset.tv_sec;
user_offset2.tv_usec = 0;
timersub(&times[0], &user_offset2, &tn[0]);
timersub(&times[1], &user_offset2, &tn[1]);
DONT_FAKE_TIME(result = real_utimes(filename, tn));
if (result == -1)
{
if (times == NULL)
{ /* The user wants their given fake times left alone but they requested NOW, so turn it into fake NOW */
fake_gettimeofday(&tn[0]);
tn[1] = tn[0];
times = tn;
}
}
else if (times != NULL)
{
struct timeval user_offset2;
user_offset2.tv_sec = user_offset.tv_sec;
user_offset2.tv_usec = user_offset.tv_nsec / 1000;
timersub(&times[0], &user_offset2, &tn[0]);
timersub(&times[1], &user_offset2, &tn[1]);
times = tn;
}
DONT_FAKE_TIME(result = real_utimes(filename, times));
return result;
}
/* This conditionally offsets 2 timespec values. The caller's out_times array
* always contains valid translated values, even if in_times was NULL. */
static void fake_two_timespec(const struct timespec in_times[2], struct timespec out_times[2])
{
if (in_times == NULL) /* Translate NULL into 2 UTIME_NOW values */
{
out_times[0].tv_sec = out_times[1].tv_sec = 0;
out_times[0].tv_nsec = out_times[1].tv_nsec = UTIME_NOW;
in_times = out_times;
}
struct timespec now;
now.tv_nsec = UTIME_OMIT; /* Wait to grab the current time to see if it's actually needed */
int j;
for (j = 0; j <= 1; j++)
{
/* We need to preserve 2 special time values in addition to when the user disables utime offsets */
if (fake_utime_disabled || in_times[j].tv_nsec == UTIME_OMIT || in_times[j].tv_nsec == UTIME_NOW)
{
if (fake_utime_disabled && in_times[j].tv_nsec == UTIME_NOW)
{ /* The user wants their given fake times left alone but they requested NOW, so turn it into fake NOW */
if (now.tv_nsec == UTIME_OMIT) /* did we grab "now" yet? */
{
DONT_FAKE_TIME(real_clock_gettime(CLOCK_REALTIME, &now));
}
timeradd2(&now, &user_offset, &out_times[j], n);
}
else if (out_times != in_times)
{ /* Just preserve the input value */
out_times[j] = in_times[j];
}
}
else
{
timersub2(&in_times[j], &user_offset, &out_times[j], n);
}
}
}
int utimensat(int dirfd, const char *filename, const struct timespec times[2], int flags)
{
if (!initialized)
{
ftpl_init();
}
if (NULL == real_utimensat)
{ /* dlsym() failed */
#ifdef DEBUG
(void) fprintf(stderr, "faketime problem: original utimensat() not found.\n");
#endif
return -1; /* propagate error to caller */
return -1;
}
int result;
struct timespec tn[2];
fake_two_timespec(times, tn);
DONT_FAKE_TIME(result = real_utimensat(dirfd, filename, tn, flags));
return result;
}
int futimens(int fd, const struct timespec times[2])
{
if (!initialized)
{
ftpl_init();
}
if (NULL == real_futimens)
{ /* dlsym() failed */
#ifdef DEBUG
(void) fprintf(stderr, "faketime problem: original futimens() not found.\n");
#endif
return -1; /* propagate error to caller */
}
int result;
struct timespec tn[2];
fake_two_timespec(times, tn);
DONT_FAKE_TIME(result = real_futimens(fd, tn));
return result;
}
#endif
@@ -2411,8 +2274,6 @@ static void ftpl_init(void)
#ifdef FAKE_FILE_TIMESTAMPS
real_utimes = dlsym(RTLD_NEXT, "utimes");
real_utime = dlsym(RTLD_NEXT, "utime");
real_utimensat = dlsym(RTLD_NEXT, "utimensat");
real_futimens = dlsym(RTLD_NEXT, "futimens");
#endif
#if defined(__alpha__) && defined(__GLIBC__)
real_gettimeofday = dlvsym(RTLD_NEXT, "gettimeofday", "GLIBC_2.1");
@@ -2448,11 +2309,6 @@ static void ftpl_init(void)
# endif
real___clock_gettime = dlsym(RTLD_NEXT, "__clock_gettime");
#endif
#ifdef FAKE_RANDOM
real_getrandom = dlsym(RTLD_NEXT, "getrandom");
#endif
#ifdef FAKE_PTHREAD
#ifdef __GLIBC__
@@ -2524,22 +2380,6 @@ static void ftpl_init(void)
fake_stat_disabled = 1; //Note that this is NOT re-checked
}
#endif
#if defined FAKE_FILE_TIMESTAMPS
#ifndef FAKE_UTIME
fake_utime_disabled = 0; // Defaults to enabled w/o FAKE_UTIME define
#endif
if ((tmp_env = getenv("FAKE_UTIME")) != NULL) //Note that this is NOT re-checked
{
if (!*tmp_env || *tmp_env == 'y' || *tmp_env == 'Y' || *tmp_env == 't' || *tmp_env == 'T')
{ /* an empty string or a yes/true value turns off disabling */
fake_utime_disabled = 0;
}
else
{ /* Any other non-number disables the utime functions, but we also support FAKE_UTIME=1 to enable */
fake_utime_disabled = !atoi(tmp_env);
}
}
#endif
if ((tmp_env = getenv("FAKETIME_CACHE_DURATION")) != NULL)
{
@@ -2848,9 +2688,6 @@ int fake_clock_gettime(clockid_t clk_id, struct timespec *tp)
static time_t last_data_fetch = 0; /* not fetched previously at first call */
static int cache_expired = 1; /* considered expired at first call */
/* Karl Chan's v0.8 sanity check moved here for 0.9.9 */
if (tp == NULL) return -1;
/* create a copy of the timespec containing the real system time for clk_id */
struct timespec tp_save;
tp_save.tv_sec = tp->tv_sec;
@@ -2867,8 +2704,11 @@ int fake_clock_gettime(clockid_t clk_id, struct timespec *tp)
return 0;
}
/* Sanity check by Karl Chan since v0.8 */
if (tp == NULL) return -1;
// {ret = value; goto abort;} to call matching pthread_cleanup_pop and return value
volatile int ret = INT_MAX;
int ret = INT_MAX;
#ifdef PTHREAD_SINGLETHREADED_TIME
static pthread_mutex_t time_mutex = PTHREAD_MUTEX_INITIALIZER;
@@ -3566,46 +3406,9 @@ int clock_settime(clockid_t clk_id, const struct timespec *tp) {
offset += (double) nsec_diff/SEC_TO_nSEC;
snprintf(newenv_string, 255, "%+f", offset);
parse_config_file = false; /* #247: make sure environment takes precedence */
setenv("FAKETIME", newenv_string, 1);
force_cache_expiration = 1; /* make sure it becomes effective immediately */
/* If FAKETIME_TIMESTAMP_FILE was given in environment,
* and if FAKETIME_UPDATE_TIMESTAMP_FILE=1, then update it.
* This allows other process instances to share the same time. */
if ( (getenv("FAKETIME_TIMESTAMP_FILE") != NULL)
&& (*getenv("FAKETIME_TIMESTAMP_FILE") != '\0')
&& (getenv("FAKETIME_UPDATE_TIMESTAMP_FILE") != NULL)
&& (strcmp(getenv("FAKETIME_UPDATE_TIMESTAMP_FILE"), "1") == 0))
{
const char *error = NULL;
FILE *envfile;
static char custom_filename[BUFSIZ];
(void) snprintf(custom_filename, BUFSIZ, "%s", getenv("FAKETIME_TIMESTAMP_FILE"));
if ((envfile = fopen(custom_filename, "wt")) != NULL)
{
if (fprintf(envfile, "%+f\n", offset) < 0)
{
error = "to write to file";
}
if (fclose(envfile) != 0)
{
error = "to close file";
}
}
else
{
error = "to open file";
}
if (error)
{
fprintf(stderr, "libfaketime: In clock_settime(), failed to "
"%s while updating FAKETIME_TIMESTAMP_FILE (`%s'): %s\n",
error, getenv("FAKETIME_TIMESTAMP_FILE"), strerror(errno));
}
}
return 0;
}
@@ -3654,41 +3457,6 @@ int adjtime (const struct timeval *delta, struct timeval *olddelta)
}
#endif
#ifdef FAKE_RANDOM
/*
Local copy of
Middle Square Weyl Sequence Random Number Generator
Copyright (c) 2014-2020 Bernard Widynski
License: GNU GPL v3
see https://mswsrng.wixsite.com/rand
adapted to take the seed s as a parameter and return only a byte
*/
inline static uint32_t fakerandom_msws(uint64_t s) {
static uint64_t x = 0, w = 0;
x *= x; x += (w += s);
x = (x>>32) | (x<<32);
return (char) x & 0xFF;
}
ssize_t getrandom(void *buf, size_t buflen, unsigned int flags) {
char *seedstring = getenv("FAKERANDOM_SEED");
char *b = buf;
if (seedstring != NULL) {
long long int seed = strtoll(seedstring, NULL, 0);
for (size_t i = 0; i < buflen; i++) {
b[i] = fakerandom_msws(seed);
}
return buflen;
}
else { /* if no FAKERANDOM_SEED was given, use the original function */
return real_getrandom(buf, buflen, flags);
}
}
#endif
/*
* Editor modelines
*

View File

@@ -1,37 +0,0 @@
CC = gcc
CFLAGS = -std=gnu99 -Wall -DFAKE_STAT -Werror -Wextra $(FAKETIME_COMPILE_CFLAGS)
LDFLAGS = -lrt -lpthread
SRC = timetest.c
OBJ = ${SRC:.c=.o}
all: timetest test
.c.o:
${CC} -c ${CFLAGS} $<
timetest: ${OBJ}
${CC} -o $@ ${OBJ} ${LDFLAGS}
test: timetest functest
@echo
@./test.sh
# run functional tests
functest:
./testframe.sh functests
getrandom_test: getrandom_test.c
${CC} -o $@ ${CFLAGS} $<
randomtest: getrandom_test
./randomtest.sh
clean:
@rm -f ${OBJ} timetest getrandom_test
distclean: clean
@echo
.PHONY: all test clean distclean

View File

@@ -1,30 +0,0 @@
CC ?= clang
CFLAGS += -std=gnu99 -Wall -DFAKE_STAT $(FAKETIME_COMPILE_CFLAGS)
SRC = timetest.c
OBJ = ${SRC:.c=.o}
all: timetest test
.c.o:
${CC} -c ${CFLAGS} $<
timetest: ${OBJ}
${CC} -o $@ ${OBJ} ${LDFLAGS}
test: timetest functest
@echo
@./test_OSX.sh
# run functional tests
functest:
./testframe.sh functests
clean:
@rm -f ${OBJ} timetest
distclean: clean
@echo
.PHONY: all test clean distclean

29
test/Makefile.am Normal file
View File

@@ -0,0 +1,29 @@
AM_CPPFLAGS =-DFAKE_SLEEP -DFAKE_INTERNAL_CALLS -I@top_srcdir@/src
AM_CFLAGS =
AM_LDFLAGS =
# functests.sh fail for me, test.sh hangs for me.
# TESTS = test.sh functests.sh
check_PROGRAMS = timetest
timetest_SOURCES = timetest.c
check_SCRIPTS = functests.sh testframe.sh test.sh
EXTRA_DIST = $(check_SCRIPTS) \
functests/common.inc \
functests/dont_test_false.sh \
functests/test_exclude_mono.sh \
functests/test_null.sh \
functests/test_true.sh \
functests/test_walkone.sh
if SOLARIS
AM_CPPFLAGS += -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
AM_LDFLAGS += -Wl,--version-script=libfaketime.map
endif
if !MACOS
AM_CPPFLAGS += -DFAKE_STAT -DFAKE_PTHREAD -DFAKE_TIMERS -DFAKE_INTERNAL_CALLS
AM_CFLAGS += -std=gnu99 -Wall -Wextra -Werror -fPIC -Wno-nonnull-compare
timetest_LDADD = -ldl -lm -lrt -lpthread
endif

7
test/functests.sh Executable file
View File

@@ -0,0 +1,7 @@
#!/bin/sh
set -e
[ "${srcdir}" ] || srcdir=.
# run functional tests
# cd "${srcdir}/"
${srcdir}/testframe.sh ${srcdir}/functests

View File

@@ -1,5 +1,8 @@
# libfaketime-specific common support routines for tests
LIB_BUILD_PATH="../src/$(grep 'LT_OBJDIR' ../config.h | cut -d'"' -f2)"
LIBFAKETIME_LA=$(find "$LIB_BUILD_PATH" | grep 'libfaketime\.\(dylib\|so\)$')
# say which *_fakecmd wrapper to use
platform()
{
@@ -19,7 +22,7 @@ platform()
mac_fakecmd()
{
typeset timestring="$1"; shift
typeset fakelib=../src/libfaketime.1.dylib
typeset fakelib="$LIBFAKETIME_LA"
export DYLD_INSERT_LIBRARIES=$fakelib
export DYLD_FORCE_FLAT_NAMESPACE=1
FAKETIME="$timestring" \
@@ -29,7 +32,7 @@ mac_fakecmd()
sunos_fakecmd()
{
typeset timestring="$1"; shift
typeset fakelib=../src/libfaketime.so.1
typeset fakelib="$LIBFAKETIME_LA"
export LD_PRELOAD=$fakelib
FAKETIME="$timestring" \
"$@"
@@ -39,8 +42,7 @@ sunos_fakecmd()
linuxlike_fakecmd()
{
typeset timestring="$1"; shift
FTPL="${FAKETIME_TESTLIB:-../src/libfaketime.so.1}"
typeset fakelib="$FTPL"
typeset fakelib="$LIBFAKETIME_LA"
export LD_PRELOAD=$fakelib
FAKETIME="$timestring" \
"$@"

View File

@@ -1,25 +0,0 @@
#include <stdio.h>
#include <sys/random.h>
#include <stdlib.h>
int main() {
char *buf = calloc(100, 1);
size_t buflen = 100;
unsigned flags = GRND_NONBLOCK;
fprintf(stdout, "Before getrandom:\n");
for (size_t i=0; i < buflen; i++) { fprintf(stdout, "%hhu ", buf[i]); }
fprintf(stdout, "\n");
int result = getrandom(buf, buflen, flags);
fprintf(stdout, "getrandom() result: %d\n", result);
if (result == -1) perror("getrandom() unsuccessful");
fprintf(stdout, "After getrandom:\n");
for (size_t i=0; i < buflen; i++) { fprintf(stdout, "%hhu ", buf[i]); }
fprintf(stdout, "\n");
free(buf);
return 0;
}

View File

@@ -1,31 +0,0 @@
#!/bin/sh
FTPL="${FAKETIME_TESTLIB:-../src/libfaketime.so.1}"
error=0
./getrandom_test > run0
FAKERANDOM_SEED=0x12345678DEADBEEF LD_PRELOAD="$FTPL" ./getrandom_test > run1
FAKERANDOM_SEED=0x12345678DEADBEEF LD_PRELOAD="$FTPL" ./getrandom_test > run2
FAKERANDOM_SEED=0x0000000000000000 LD_PRELOAD="$FTPL" ./getrandom_test > run3
if diff -u run0 run1 > /dev/null; then
error=1
printf >&2 'test run without a seed produced the same data as a run with a seed!\n'
fi
if ! diff -u run1 run2; then
error=2
printf >&2 'test runs with identical seeds differed!\n'
fi
if diff -u run2 run3 >/dev/null; then
error=3
printf >&2 'test runs with different seeds produced the same data!\n'
fi
rm -f run0 run1 run2 run3
if [ 0 = $error ]; then
printf 'getrandom interception test successful.\n'
fi
exit $error

View File

@@ -1,16 +1,38 @@
#!/bin/sh
FTPL="${FAKETIME_TESTLIB:-../src/libfaketime.so.1}"
##################################################################
# NOTICE: #
# When you edit this script, maintain compatibility with BASH 3. #
# This is the version that Apple distributes. #
##################################################################
LIB_BUILD_PATH="../src/$(grep 'LT_OBJDIR' ../config.h | cut -d'"' -f2)"
LIBFAKETIME_LA=$(find "$LIB_BUILD_PATH" | grep 'libfaketime\.\(dylib\|so\)$')
set_libfaketime() {
the_path="$LIBFAKETIME_LA"
if [ "$(uname)" = "Darwin" ]; then
export DYLD_INSERT_LIBRARIES="$the_path"
export DYLD_FORCE_FLAT_NAMESPACE=1
else
export LD_PRELOAD="$the_path"
fi
}
echo $(set_libfaketime)
if [ -f /etc/faketimerc ] ; then
echo "Running the test program with your system-wide default in /etc/faketimerc"
echo "\$ LD_PRELOAD=$FTPL ./timetest"
LD_PRELOAD="$FTPL" ./timetest
echo "\$ $(set_libfaketime) ./timetest"
set_libfaketime
./timetest
echo
else
echo "Running the test program with no faked time specified"
echo "\$ LD_PRELOAD=$FTPL ./timetest"
LD_PRELOAD="$FTPL" ./timetest
echo "\$ $(set_libfaketime) ./timetest"
set_libfaketime
./timetest
echo
fi
@@ -18,48 +40,62 @@ echo "==========================================================================
echo
echo "Running the test program with absolute date 2003-01-01 10:00:05 specified"
echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"2003-01-01 10:00:05\" ./timetest"
LD_PRELOAD="$FTPL" FAKETIME="2003-01-01 10:00:05" ./timetest
echo "\$ $(set_libfaketime) FAKETIME=\"2003-01-01 10:00:05\" ./timetest"
set_libfaketime
export FAKETIME="2003-01-01 10:00:05"
./timetest
echo
echo "============================================================================="
echo
echo "Running the test program with START date @2005-03-29 14:14:14 specified"
echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"@2005-03-29 14:14:14\" ./timetest"
LD_PRELOAD="$FTPL" FAKETIME="@2005-03-29 14:14:14" ./timetest
echo "\$ $(set_libfaketime) FAKETIME=\"@2005-03-29 14:14:14\" ./timetest"
set_libfaketime
export FAKETIME="@2005-03-29 14:14:14"
./timetest
echo
echo "============================================================================="
echo
echo "Running the test program with 10 days negative offset specified"
echo "LD_PRELOAD=$FTPL FAKETIME=\"-10d\" ./timetest"
LD_PRELOAD="$FTPL" FAKETIME="-10d" ./timetest
echo "$(set_libfaketime) FAKETIME=\"-10d\" ./timetest"
set_libfaketime
export FAKETIME="-10d"
./timetest
echo
echo "============================================================================="
echo
echo "Running the test program with 10 days negative offset specified, and FAKE_STAT disabled"
echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"-10d\" NO_FAKE_STAT=1 ./timetest"
LD_PRELOAD="$FTPL" FAKETIME="-10d" NO_FAKE_STAT=1 ./timetest
echo "\$ $(set_libfaketime) FAKETIME=\"-10d\" NO_FAKE_STAT=1 ./timetest"
set_libfaketime
export FAKETIME="-10d"
export NO_FAKE_STAT=1
./timetest
echo
echo "============================================================================="
echo
echo "Running the test program with 10 days positive offset specified, and speed-up factor"
echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"+10d x1\" ./timetest"
LD_PRELOAD="$FTPL" FAKETIME="+10d x1" NO_FAKE_STAT=1 ./timetest
echo "Running the test program with 10 days positive offset specified, and sped up 2 times"
echo "\$ $(set_libfaketime) FAKETIME=\"+10d x2\" ./timetest"
set_libfaketime
export FAKETIME="+10d x2"
export NO_FAKE_STAT=1
./timetest
echo
echo "============================================================================="
echo
echo "Running the 'date' command with 15 days negative offset specified"
echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"-15d\" date"
LD_PRELOAD="$FTPL" FAKETIME="-15d" date
echo "\$ $(set_libfaketime) FAKETIME=\"-15d\" date"
set_libfaketime
export FAKETIME="-15d"
date
echo
echo "============================================================================="

View File

@@ -1,52 +0,0 @@
#!/bin/sh
export DYLD_FORCE_FLAT_NAMESPACE=1
export DYLD_INSERT_LIBRARIES=../src/libfaketime.1.dylib
if [ -f /etc/faketimerc ] ; then
echo "Running the test program with your system-wide default in /etc/faketimerc"
./timetest
echo
else
echo "Running the test program with no faked time specified"
./timetest
echo
fi
echo "Running the test program with absolute date 2003-01-01 10:00:05 specified"
echo "FAKETIME=\"2003-01-01 10:00:05\" ./timetest"
FAKETIME="2003-01-01 10:00:05" ./timetest
echo
echo "Running the test program with START date @2005-03-29 14:14:14 specified"
echo "FAKETIME=\"@2005-03-29 14:14:14\" ./timetest"
FAKETIME="@2005-03-29 14:14:14" ./timetest
echo
echo "Running the test program with 10 days negative offset specified"
echo "FAKETIME=\"-10d\" ./timetest"
FAKETIME="-10d" ./timetest
echo
# FAKE_STAT is disabled on macOS by default, so testing NO_FAKE_STAT is not useful
#echo "Running the test program with 10 days negative offset specified, and FAKE_STAT disabled"
#echo "FAKETIME=\"-10d\" NO_FAKE_STAT=1 ./timetest"
#FAKETIME="-10d" NO_FAKE_STAT=1 ./timetest
#echo
echo "Running the test program with 10 days positive offset specified, and sped up 2 times"
echo "FAKETIME=\"+10d x2\" ./timetest"
FAKETIME="+10d x2" NO_FAKE_STAT=1 ./timetest
echo
# On more recent macOS versions, the following won't work without copying gdate
# to a different folder beforehand. We don't do that here, and since the output
# of these tests must be reviewed manually anyway, the timetest binary should be
# sufficient to determine whether everything works as planned.
#echo "Running the 'date' command with 15 days negative offset specified"
#echo "FAKETIME=\"-15d\" date"
#FAKETIME="-15d" date
#echo
exit 0

View File

@@ -6,6 +6,8 @@
# see README.testframe.txt for details.
#
testframedir="${BASH_SOURCE%/*}"
# echo labelled error/warning message to stderr
report()
{
@@ -33,7 +35,7 @@ run_testsuite()
# add testsuite dir to PATH for convenience
typeset dir=$(dirname $testsuite)
PATH=$dir:$PATH
. testframe.inc
. $testframedir/testframe.inc
if [ -f $dir/common.inc ]; then
. $dir/common.inc
fi

View File

@@ -18,6 +18,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
@@ -115,6 +116,7 @@ void* pthread_test(void* args)
}
#endif
#include "faketime_common.h"
int main (int argc, char **argv)
{
@@ -216,10 +218,7 @@ printf("%s", 0 == 1 ? argv[0] : "");
printf("time() : Current date and time: %s", ctime(&now));
printf("time(NULL) : Seconds since Epoch : %u\n", (unsigned int)time(NULL));
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
ftime(&tb);
#pragma GCC diagnostic pop
printf("ftime() : Current date and time: %s", ctime(&tb.time));
printf("(Intentionally sleeping 2 seconds...)\n");
@@ -246,11 +245,7 @@ printf("%s", 0 == 1 ? argv[0] : "");
int timer_getoverrun_timerid1 = timer_getoverrun(timerid1);
if (timer_getoverrun_timerid1 != 3)
{
#ifdef __GNU__
printf("(Timer overruns are assumed to be fine on Hurd)\n");
#else
printf("timer_getoverrun(timerid1) FAILED, must be 3 but got: %d\n", timer_getoverrun_timerid1);
#endif
}
timer_gettime(timerid1, &its);